DBNOTGDS, xxxx - Unrecognized database file format

Run Time Error: This indicates that a database operation attempted to activate file xxxx, which is not a GDS file.

アクション：グローバルディレクトリ内のファイルが正しく名付けられていることを確認するためにGDEを使用してください。It is likely that something other than GT.M or its utilities wrote to a database file or created a file with a name that coincides with one specified in the current Global Directory.